<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8">
    <title></title>
    <style media="screen">
    .box {width:200px; height:200px; background:#CCC; border:1px solid black; margin:100px auto 0;transform:perspective(500px) rotateY(0deg); transform-origin:left; transition:1s all ease}
    .box:active {transform:perspective(500px) rotateY(-60deg);}
    </style>
  </head>
  <body>
    <div class="box">

    </div>
  </body>
</html>
